Shelter



FIG. 1 is a perspective view of a shelter according to the new designdisposed in a lower configuration;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a perspective view of the shelter disposed in a raisedconfiguration;

FIG. 8 is a front elevational view thereof;

FIG. 9 is a left side elevational view thereof;

FIG. 10 is a right side elevational view thereof;

FIG. 11 is a rear elevational view thereof; and,

FIG. 12 is a top view thereof.

The broken lines in the drawings illustrate portions of the shelterwhich form no part of the claimed design.

CLAIM The ornamental design for a shelter, as shown and described.